The
5500 is based on
Zen 3 architecture while the
906EC is based on
Coffee Lake.
Using the multithread performance as a reference, the 5500 gets a score of
373 k points while the 906EC gets
494.2 k points.
Summarizing, the
906EC is
1.3 times faster than the
5500. To get a proper comparison between both models, take a look to the data shown below.